Mackerel

• How can I stay up to date on Mackerel’s ongoing development?
• Mackerel doesn't recognize duplicate servers from agent installed templates ／ machine images etc.

mackerel-agent

• The agent is outputting the error "x509: certificate signed by unknown authority"
• The agent won’t startup.

Plugins, Other OSS products

• An unexpected error message occurs with Windows event log monitoring.

Integration with various cloud platforms

• I configured AWS Integration, but the host won’t integrate with Mackerel
• I’m using integration, but the host remains without retiring

Monitorins, Alerts, Notifications

• I set up monitoring rules but I’m still not getting alert notifications.
• Why don’t the number of metrics match those displayed at the bottom of graphs in the host details?
• External monitoring error "x509: certificate signed by unknown authority"
• I’m not receiving any emails.
• Graphs aren't being displayed in Mackerel and it seems like data isn't being posted.